Data Acquisition & Telemetry


GSM remote telemetering and control upgrades

April 2003 Data Acquisition & Telemetry

New features have been added to Logicell GSM Remote Telemetering and Control units, and the CellView GSM PC-based scada package, to further enhance this powerful combination.

Logicell, already one of the most powerful and flexible PLC/GSM units available, has been upgraded so that it can use GPRS high-speed data communication over the GSM network, in addition to the previously available communication methods using Datacall, voice messages, touch tone, SMS and e-mail. Some Logicell models, designed for mobile applications, have integrated GPS receivers.

These features, combined with Logicell's powerful and easy-to-use high level PLC program development environment (supplied free with Logicell units), ensure that Logicell units can be used over a full range of local control, remote telemetry and remote control applications, from communication with individual cellphones to multistation scada systems controlled and coordinated by Cellview software. A PC running the Logicell development environment can program and debug remote units via a GSM or a standard modem.

Cellview is a PC-based GSM scada system, developed in South Africa by Westplex to meet local requirements. It has been upgraded to include a user configurable geographic or diagrammatic display that shows the status of all units in the system at a glance. Other features include:

* Guaranteed communication protocol using SMS messages.

* High-speed block data transfer.

* Cellview can be easily configured by the user.

* Comprehensive alarm handling for analog and digital inputs with logging and audible/visual notification.

* Unit control panels show inputs that have alarm conditions and lists the current alarms for the unit.

* Control of remote unit outputs (digital and analog) from unit control panels.

* Alerts sent by remote units to cellphones are sent even if Cellview is not running

* Polling of remote units.

* Data and alarm logging.



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